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<A NAME=contour> <TITLE>contour</TITLE></A> <b><a href=r37_idx.html>INDEX</a></b><p><p> <B>CONTOUR</B> _ _ _ _ _ _ _ _ _ _ _ _ <B>switch</B><P> <P> <P> <P> <A HREF=r37_0551.html>plot</A>option: If <em>contour</em> is member of the options for a 3d <A HREF=r37_0551.html>plot</A> contour lines are projected to the z=0 plane (see <A HREF=r37_0549.html>axes names</A>). The absence of contour lines can be selected explicitly by including <em>nocontour</em>. Default is <em>nocontour</em>. <P> <P>